Green Century Capital Management, Inc.
Follow13F filer, CIK 1491252, Boston, MA
Green Century Capital Management, Inc. filed a 13F-NT notice for the quarter ended 2026-06-30 on 2026-08-07.
Filed (acceptance time not in the bulk data set), ingested 13F-NT 0001193125-26-339057
This filer reports no holdings of its own for Q2 2026. It filed a 13F-NT notice, and its holdings are in the report of . How notices are handled.
Changes against Q1 2026 are not shown: it was a notice, with the holdings in another manager's report (0 positions on file), so every position would read as new.
How Q2 2026 was built
Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).
| Filing | Role | Amendment | Filed | Accepted | Ingested |
|---|---|---|---|---|---|
| 13F-NT 0001193125-26-339057 | notice | 2026-08-07 | acceptance time not in the bulk data set |
Filings
Every filing of this filer: 13F reports and notices, the 13D and 13G it filed or is a reporting person of, and Forms 3, 4 and 5 it reported as an owner.
| Filing | Subject | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-NT 0001193125-26-339057 | Quarter ended 2026-06-30 | 2026-08-07 | acceptance time not in the bulk data set | |
| 13F-NT 0001193125-26-207499 | Quarter ended 2026-03-31 | 2026-05-06 | acceptance time not in the bulk data set | |
| 13F-NT 0001193125-26-045461 | Quarter ended 2025-12-31 | 2026-02-11 | acceptance time not in the bulk data set | |
| 13F-NT 0001193125-25-265622 | Quarter ended 2025-09-30 | 2025-11-05 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-006923 | Quarter ended 2025-06-30 | 2025-08-04 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-004368 | Quarter ended 2025-03-31 | 2025-05-09 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-003509 | Quarter ended 2024-09-30 | 2025-04-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-003502 | Quarter ended 2023-06-30 | 2025-04-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-003501 | Quarter ended 2023-09-30 | 2025-04-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-003503 | Quarter ended 2023-12-31 | 2025-04-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-003506 | Quarter ended 2024-03-31 | 2025-04-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-003507 | Quarter ended 2024-06-30 | 2025-04-15 | acceptance time not in the bulk data set | |
| 13F-NT 0000950123-25-001197 | Quarter ended 2024-12-31 | 2025-02-07 | acceptance time not in the bulk data set |